Glass pot and kiln.



R. L. FRINK.

GLASS POT AND KILN.

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Patented Apr. 4-, 1911;

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Patented Apr. 4, 1911.

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UNITED STATES PATENT OFFICE.

LOBEB'I. L. IRINK, 0F BELLE VER NON, PENNSYLVANIA, ASSIGNOR TO WINDOW GLASS EACHINE COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION'OF NEW JERSEY.

GLASS POT AND KILN.

Specification of Letters Patent.

Patented Apr. 4, 1911.

To all whom it'may concern:

Be it known that I, Bonner L. FBINK, a citizen of the United States, residing at Belle Vernon, Fayette county, Pennsylvania, have invented certain new and. useful Improvements in Glass Pots and Kilns, of which the followin isa full, clear, and exact description, re erenee being had to the accompanying drawings forming part of this specification, in WhlC Figure 1 is a perspective view of a glass pot and kiln embod ng my invention; Fig. 2 is an end view 0 the same partly in section; Fig. 3 is a partial plan view; Fig. 4 is a transverse vertical section;.and Fi 5 is a detail sectional view of the cylin ercontrolling valve.

My invention hasrelation to glass pots of the reversible type, and is designed to provide an improved construction of the pot and its'kiln'so arranged as to facilitate the reversal of the pot, and also to leave the u per rtion of the pot freely exposed 'a ve t stop of the kiln, to provide for the more rapid cooling of the glass as it is drawn and thereby permit an increase in the drawing s eed as well as rotecting the glass at the rawin point fi om exposure to the flame in the kiln or furnace.

A further object is to provide power means of simple and effective character for effecting the reversal of the pot and which are arranged to act as a lock to hold the pot in proper position.

With these objects in view, my invention consists in the novel construction, arrangement and combination of arts all substantially as hereinafter, described and pointed out in the appended claims.

In the drawing, the numeral 2 designates a kiln or furnace, 3 the top portion, or to stone, of the kiln, and 4 the lass pot whic is reversibly sup orted by t e trunnions 5 and bearings 6. he lot is of double form so that it may be use either side up. The outer circumferential face 7 of the pot is made convex, and the adjacent wall of the opening in the top stone which receives the pot is formed with a corresponding cavity 8, only just sutlicient clearance between the pot and wall being allowed to permit the atmosphere.

ment, the cooling of the glass at the draw which is in use in drawing projects above the top stone and is freely ex osed to the By means of t is arrangeing point occurs more rapidly, and the speed of the drawing operation can be pr0- portionately increased. The close interfitting of the pot with the top stone also prevents the escape of flame and ases from the kiln and the contact of the ame with the glass at the drawing oint.

For the purpose '0 effecting the reversal of the pot one of its trunnions is provided with a pinion 9, whose teeth are engaged by the teeth of a horizontal rack-bar 10 whichis mounted on the bracket 11 at the end of the. kiln, and which is actuated by a ower cylinder 12. This cylinder is a doub e-acting cylinder, supplied by the two pipes 13 and 14, which connect with a main supply ipe 15 through a controlling valve 16.

he valve 16, as shown in Fig. 5, is a fourway valve having the two ports 17 and 18, by means of which either end of the cylinder may be connected with the supply-pipe 15, while the opposite end is connected with an exhaust pipe 19. By moving the valve to an intermediate position both ports 17 and 18 ma be closed, thus holdin the actuating fluid 1n. the cylinder 12 to orm a lock to hold the glass pot in its proper level position. Steam, air, water or oil may be used as a. motive power, water or oil being 'pre' ferred. I v

20 is a pivoted hood for protecting the pinion 9 and rack 10, and which can be moved backwardly on its pivot 21 to permit access it these parts 22 is a pivoted arm carrying a screw-bolt 23 by means of \\'hich -the upner bearing block 6 may be adjusted, and also carrying a second screw-bolt 24 which engages the end of the glass pot trunnion and prevents endwise movement of the pot, and forms a means for taking up all wear which may occur between the trunnion and its hearings on the clay of the pot, and also 'for adjusting the pot to center it with respect to the drawing apparatus. The brackets 11 which carry the bearin 6 are preferably ivotally attached to t e kiln to swing on t e bolt 25 as a center, the bolt holes for the other securing bolts 26 being slotted as at 27. By means of a screw 28, these brackets may be adjusted to level the glass pot.

' means of Which the free exposure of the upper portion of the pot is obtained, together with the protection of the glass fromthe flame; and also in the provision of the power means for reversing the pot and for locking it in its proper position.

Various changes may be made in the details by tliose'sk'il-led'in theart, withoutdeparting from my inventiomsince What I claim is 1 1. A glass pot and kiln ,therefor,.-the pot having a .freely exposed projection above the topof the kiln; substantially as described. V

2. A glass pot and kiln therefor, the bottom Wall of the pot cavity being at least as high as the top surface oflthe top of the kiln; substantially as described.

3. A kiln, and a glass pot reversely mounted in the top of the kiln, 'said pot having a pot' cavity at opposite sides with a common bottom wall, the central horizontal plane of said bottom Wall being substantially in the plane of the top surfaceof the kiln; substantially'as described.

4:. A kiln and a double glass pot reversibly mounted in the top portion of the kiln and having its upper portion projecting above substantially as described.

6. A reversible glass pot, a power cylinder connected to the pot to effect its reversal, and valve means for controlling said cylinder to cause it to actuate the pot and also tolock the pot against movement; substantially as described.

7. A reversibly mounted glass pot, a double-acting power cylinder having an 'actuating connection with said pot, and a control valve .for the cylinder whereby the actuating fluid may be admitted to, ex-

hausted from, or locked in, either end portion'="of the cylinder; substantially as de-' scribed.

8. A double glass pot having trunnions, bearings for the saidtrunnions, and means for moving the pot longitudinally of its axis to center it between its bearings; substantially as described.

In'testimony whereof, I have hereunto set my hand.

ROBERT L. FRINK.

Witnesses:

GEO. H. PARMELEE,

GEO. B. BLEMING. 

